The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP

S. F. Graves, J. S. Richer, J. V. Buckle, A. Duarte-Cabral, G. A. Fuller, M. R. Hogerheijde, J. E. Owen, C. Brunt, H. M. Butner, B. Cavanagh, A. Chrysostomou, E. I. Curtis, C. J. Davis, M. Etxaluze, J. Di Francesco, P. Friberg, R. K. Friesen, J. S. Greaves, J. Hatchell, D. JohnstoneB. Matthews, H. Matthews, C. D. Matzner, D. Nutter, J. M. C. Rawlings, J. F. Roberts, S. Sadavoy, R. J. Simpson, N. F. H. Tothill, Y. G. Tsamis, S. Viti, D. Ward-Thompson, G. J. White, J. G. A. Wouterloot, J. Yates

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    Abstract

    The Gould Belt Legacy Survey on the James Clerk Maxwell Telescope's has observed a region of 260 arcmin2 in 12CO J = 3 -> 2 emission, and a 190 arcmin2 subset of this in 13CO and C18O towards the Serpens molecular cloud. We examine the global velocity structure of the non-outflowing gas, and calculate excitation temperatures and opacities. The large-scale mass and energetics of the region are evaluated, with special consideration for high-velocity gas. We find the cloud to have a mass of 203 M-circle dot, and to be gravitationally bound, and that the kinetic energy of the outflowing gas is approximately 70 per cent of the turbulent kinetic energy of the cloud. We identify compact outflows towards some of the submillimetre Class 0/I sources in the region.

    Original languageEnglish
    Pages (from-to)1412-1428
    Number of pages17
    JournalMonthly Notices of the Royal Astronomical Society
    Volume409
    Issue number4
    DOIs
    Publication statusPublished - 21 Dec 2010

    Keywords

    • molecular data
    • stars: formation
    • ISM: jets and outflows
    • ISM: kinematics and dynamics
    • submillimetre: ISM

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